LAI versus oral antipsychotic treatment of schizophrenia: A 12-month prospective study on patient's attitude towards treatment and quality of life

Abstract

IntroductionIt is still a matter of debate whether LAI antipsychotics are able to significantly improve patient's attitude towards treatment.ObjectiveThe aim of this 12-month observational study was to investigate the impact of switching antipsychotic treatment from oral to LAI formulation on patient's attitude towards treatment and quality of life.MethodsA total of 41 schizophrenic patients (25 males, mean age 42.10 ± 11.88 years) were recruited. Patients were expected not to need significant changes in concomitant treatments. All patients were under a stabilized therapy with a single oral antipsychotic (either olanzapine or paliperidone) and were switched to the equivalent maintenance regimen with the long-acting formulation of the same antipsychotic (olanzapine pamoate or paliperidone palmitate). Patients were assessed before the switch (T0), and after 6 (T1) and 12 months (T2) of LAI antipsychotic treatment by means of the YMRS, MADRS, PANSS, DAI-10 and SF-36.ResultsOur data evidenced an overall significant improvement of psychopathology, adherence and quality of life over the 12-month period (T0 vs. T2). In particular, while all of the measures significantly improved in the first semester (T0 vs. T1), only YMRS, positive PANSS and DAI-10 improved both in the first and in the second semester (T1 vs. T2), indicating an additional advantage of a prolonged LAI treatment on these clinical dimensions.ConclusionsThe switch from oral to long-acting antipsychotic treatment may provide considerable advantages in improving patient's attitude towards (and therefore adherence to) treatment. Part of this improvement could be related with a better efficacy on psychopathology and quality of life.Disclosure of interestThe authors have not supplied their declaration of competing interest.